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block: remove the lock argument to blk_alloc_queue_node

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With the legacy request path gone there is no real need to override the
queue_lock.

Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2018-11-14 17:02:18 +01:00 committed by Jens Axboe
parent 310df020cd
commit 6d46964230
10 changed files with 12 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
block/blk-core.c
View File

@ -393,7 +393,7 @@ EXPORT_SYMBOL(blk_cleanup_queue);
struct request_queue *blk_alloc_queue(gfp_t gfp_mask)
{
return blk_alloc_queue_node(gfp_mask, NUMA_NO_NODE, NULL);
return blk_alloc_queue_node(gfp_mask, NUMA_NO_NODE);
}
EXPORT_SYMBOL(blk_alloc_queue);
@ -473,17 +473,8 @@ static void blk_rq_timed_out_timer(struct timer_list *t)
* blk_alloc_queue_node - allocate a request queue
* @gfp_mask: memory allocation flags
* @node_id: NUMA node to allocate memory from
* @lock: For legacy queues, pointer to a spinlock that will be used to e.g.
* serialize calls to the legacy .request_fn() callback. Ignored for
* blk-mq request queues.
*
* Note: pass the queue lock as the third argument to this function instead of
* setting the queue lock pointer explicitly to avoid triggering a sporadic
* crash in the blkcg code. This function namely calls blkcg_init_queue() and
* the queue lock pointer must be set before blkcg_init_queue() is called.
*/
struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id,
spinlock_t *lock)
struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
{
struct request_queue *q;
int ret;
@ -534,8 +525,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id,
#endif
mutex_init(&q->sysfs_lock);
spin_lock_init(&q->__queue_lock);
q->queue_lock = lock ? : &q->__queue_lock;
q->queue_lock = &q->__queue_lock;
init_waitqueue_head(&q->mq_freeze_wq);

2
block/blk-mq.c
View File

@ -2548,7 +2548,7 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
{
struct request_queue *uninit_q, *q;
uninit_q = blk_alloc_queue_node(GFP_KERNEL, set->numa_node, NULL);
uninit_q = blk_alloc_queue_node(GFP_KERNEL, set->numa_node);
if (!uninit_q)
return ERR_PTR(-ENOMEM);

2
drivers/block/drbd/drbd_main.c
View File

@ -2792,7 +2792,7 @@ enum drbd_ret_code drbd_create_device(struct drbd_config_context *adm_ctx, unsig
drbd_init_set_defaults(device);
q = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE, NULL);
q = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE);
if (!q)
goto out_no_q;
device->rq_queue = q;

3
drivers/block/null_blk_main.c
View File

@ -1659,8 +1659,7 @@ static int null_add_dev(struct nullb_device *dev)
}
null_init_queues(nullb);
} else if (dev->queue_mode == NULL_Q_BIO) {
nullb->q = blk_alloc_queue_node(GFP_KERNEL, dev->home_node,
NULL);
nullb->q = blk_alloc_queue_node(GFP_KERNEL, dev->home_node);
if (!nullb->q) {
rv = -ENOMEM;
goto out_cleanup_queues;

2
drivers/block/umem.c
View File

@ -888,7 +888,7 @@ static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
card->biotail = &card->bio;
spin_lock_init(&card->lock);
card->queue = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE, NULL);
card->queue = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE);
if (!card->queue)
goto failed_alloc;

2
drivers/lightnvm/core.c
View File

@ -389,7 +389,7 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
goto err_dev;
}
tqueue = blk_alloc_queue_node(GFP_KERNEL, dev->q->node, NULL);
tqueue = blk_alloc_queue_node(GFP_KERNEL, dev->q->node);
if (!tqueue) {
ret = -ENOMEM;
goto err_disk;

2
drivers/md/dm.c
View File

@ -1896,7 +1896,7 @@ static struct mapped_device *alloc_dev(int minor)
INIT_LIST_HEAD(&md->table_devices);
spin_lock_init(&md->uevent_lock);
md->queue = blk_alloc_queue_node(GFP_KERNEL, numa_node_id, NULL);
md->queue = blk_alloc_queue_node(GFP_KERNEL, numa_node_id);
if (!md->queue)
goto bad;
md->queue->queuedata = md;

2
drivers/nvdimm/pmem.c
View File

@ -393,7 +393,7 @@ static int pmem_attach_disk(struct device *dev,
return -EBUSY;
}
q = blk_alloc_queue_node(GFP_KERNEL, dev_to_node(dev), NULL);
q = blk_alloc_queue_node(GFP_KERNEL, dev_to_node(dev));
if (!q)
return -ENOMEM;

2
drivers/nvme/host/multipath.c
View File

@ -276,7 +276,7 @@ int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head)
if (!(ctrl->subsys->cmic & (1 << 1)) || !multipath)
return 0;
q = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE, NULL);
q = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE);
if (!q)
goto out;
q->queuedata = head;

3
include/linux/blkdev.h
View File

@ -1122,8 +1122,7 @@ extern long nr_blockdev_pages(void);
bool __must_check blk_get_queue(struct request_queue *);
struct request_queue *blk_alloc_queue(gfp_t);
struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id,
spinlock_t *lock);
struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id);
extern void blk_put_queue(struct request_queue *);
extern void blk_set_queue_dying(struct request_queue *);